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33-V bidirectional flat-clamp surge protection device

Inventory: 6,147
Custom reel may be available

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Packaging information

Package | Pins VSON (DRB) | 8
Operating temperature range (°C) Q (-40 to 125)
Package qty | Carrier: 3,000 | LARGE T&R
Custom reel may be available
View more packaging information

Quality information

RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-2-260C-1 YEAR
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View


  • Protection Against 1-kV, 42-Ω IEC 61000-4-5 Surge Test for Industrial Signal Lines
  • Bidirectional Polarity Enables Protection Against Bipolar Signaling or Miswiring Conditions
  • Clamping Voltage of 40 V at 27-A of 8/20-µs Surge Current
  • Standoff Voltage: ±33 V
  • Small 3 mm x 3 mm SON Footprint
  • Survives Over 5,000 Repetitive Strikes of 25-A 8/20-µs Surge Current
  • Robust Surge Protection
    • IEC61000-4-5 (8/20 µs): 27 A
    • IEC61643-321 (10/1000 µs): 3 A
  • Low Leakage Current
    • 2.5-nA Typical at 27°C
    • 450-nA Maximum at85°C
  • Low Capacitance: 54 pF
  • Integrated Level 4 IEC 61000-4-2 ESD Protection

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The TVS3301 device shunts up to 27 A of IEC 61000-4-5 fault current to protect systemsfrom high-power transients or lightning strikes. The device survives the common industrial signalline EMC requirement of 1-kV IEC 61000-4-5 open circuit voltage coupled through a 42-Ω impedance.The TVS3301 uses a feedback mechanism to ensure precise flat clamping during a fault, keepingsystem exposure lower than traditional TVS diodes. The tight voltage regulation allows designers toconfidently select system components with a lower voltage tolerance, lowering system costs andcomplexity without sacrificing robustness. The TVS3301 has a ±33-V operating range to enableoperation in systems that require protection against reverse wiring conditions.

In addition, the TVS3301 is available in a small SON footprint designed for spaceconstrained applications, offering a significant size reduction compared to standard SMA and SMBpackages. Low device leakage and capacitance ensure a minimal effect on the protected line. Toensure robust protection over the lifetime of the product, TI tests the TVS3301 against 5000repetitive surge strikes at 125°C with no shift in device performance.

The TVS3301 is part of TI’s Flat-Clamp family of surge devices. For a deeper look at theFlat-Clamp family, refer to the Flat-Clamp Surge Protection Technology for Efficient SystemProtection white paper.

Qty Price
1-99 $0.61
100-249 $0.47
250-999 $0.34
1,000+ $0.25